例如，假定有一个构建文档的脚本，它在后台使用Apache的格式化对象处理器(Formatting Objects Processor, FOP)系统生成文档的PDF版本。

For example, say you have a script that builds a document in the background using the Formatting Objects Processor (FOP) system from Apache to generate a PDF version of the document.

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然而，需要警告的是，FOP (Formatting Objects Processor，格式化对象处理器)—Apache的开放源码XSL处理器—没有完全实现keep特性。

Be warned, though, that FOP — Formatting Objects processor, the open-source XSL processor from Apache — does not fully implement the keep properties.

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您可以利用开放源码 XSLT 处理器、XSL 格式化对象（XSL Formatting Objects，XSL-FO）词汇表和格式化对象引擎来做这项工作。

You can do the job with an open-source XSLT processor, the XSL Formatting Objects (XSL-FO) vocabulary, and a formatting-object engine.

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